In the present work, we study the texture limits of neutrino mass matrices, considering the current values ​​of the oscillation parameters and the observed tension between measurements of the phase $\delta_{\text{CP}}$ in the NOvA and T2K experiments. NOvA has reported $\delta_{\text{CP}} = (0.82^{+0.27}{-0.87}) \pi$, which minimizes the CP violation, while T2K has measured $\delta{\text{CP}} = (-0.6^{+0.22}{-0.18}) \pi$, which maximizes the CP violation. We propose that this discrepancy could be related to the manifestation of the Majorana nature of neutrinos in a quantum decoherence environment, as shown in PHYS. REV. D 105, 035010 (2022). In this context, we include non-zero Majorana phases in the calculations to assess how they are affected by different mass matrix textures. Our results show that in the inverted hierarchy the matrix components $M{ee}$ remain independent of $\delta_{\text{CP}}$ for various Majorana phase combinations, while in the normal hierarchy the components $M_{e\mu}$ and $M_{e\tau}$ are the most sensitive to variations in $\delta_{\text{CP}}$. These findings highlight the importance of including non-zero Majorana phases in the analysis of neutrino mass matrix textures, which might explain the observed tension between NOvA and T2K and new constraints on the mass matrix structure.